Exam 21:The Reproductive Systems-Part B

An average menstrual cycle is approximately ___________ days.

The openings in the female perineum are for the _______________________ and the __________________________.

The testes are located in the __________________,because sperm production requires a lower ___________________________.

The hormone that stimulates growth of the secretory cells of the mammary glands is _________________.

In the mammary glands,the hormone _____________________ stimulates milk production,and the hormone ___________________ stimulates release of milk.

The ________________ of a sperm cell contains the chromosomes,the ____________________ provide ATP,and the _________________________ provides motility.

In the menstrual cycle,the endometrium is shed during the _______________________ phase.

The layer of the uterine wall that contracts for delivery of an infant is the ___________________________.